[Feature Request] 'Variables' and 'Variable groups' parameter for az pipelines create|update

Is your feature request related to a problem? Please describe. Some variables can’t be in the azure-pipelines.yaml file in source control. For that we have the ability to edit via the UI the variables of the pipeline definition. It would be ideal to have the ability to set variables while leveraging az pipelines create and az pipelines update.

Describe the solution you’d like az pipelines create --variables key1=value1 key2=value2 same for az pipelines update

Describe alternatives you’ve considered The alternative is to do that via the UI by editing the pipelines definition, but not very efficient for automation.

[atbagga]

The commands released as part of this change are the following two command groups-

1. az pipelines variable
2. az pipelines variable-group

You can manage creating variables normal/secrets using commands in these two groups. e.g. az pipelines variable create --name MyTestVar --value TestValue --pipeline-id 1

Linking variables and variable groups to pipelines is recommended to be done through yaml file for yaml based pipelines. Documentation for the same is here - https://docs.microsoft.com/en-us/azure/devops/pipelines/library/variable-groups?view=azure-devops&tabs=yaml

[LaurentLesle]

Variable group linked to Azure Key Vault keys would be a great addition as well